Psidium dumetorum

• Overview
• Interesting Facts
• Description
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Overview

Extinct

Interesting Facts

Description

Family Myrtaceae

Trees or shrubs , evergreen , usually with essential oils-containing cavities in foliage , branchlets , and flowers. Stipules absent or small and caducous . Leaves opposite, occasionally alternate, occasionally ternate or pseudo-whorled; leaf blade with secondary veins pinnate or basal, often with intramarginal veins near margin , margin usually entire. Inflorescences axillary or terminal , cymose but variously arranged, 1- to many-flowered. Flowers bisexual , sometimes polygamous, actinomorphic . Hypanthium usually adnate to ovary and prolonged above it. Calyx lobes (3 or) 4 or 5 or more, distinct or connate into a calyptra. Petals 4 or 5, sometimes absent, distinct or connate into a calyptra, sometimes coherent and pseudocalyptrate. Stamens usually numerous , in 1 to several whorls; filaments distinct or connate into 5 bundles opposite petals; anthers 2-celled, dorsifixed or basifixed , dehiscing longitudinally or rarely terminally; connectives usually terminating in 1 or more apical glands . Ovary inferior, semi-inferior, or very rarely superior, carpels 2 to more, locules 1 to many, pseudoseptum sometimes present, placentation usually axile but occasionally parietal ; ovules 1 to several per locule. Style single; stigma single. Fruit a capsule, berry, drupaceous berry, or drupe, 1- to many-seeded. Seeds without endosperm or endosperm sparse and thin; testa cartilaginous or thinly membranous, sometimes absent; embryo straight or curved .

About 130 genera and 4500-5000 species: Mediterranean region, sub-Saharan Africa, Madagascar, tropical and temperate Asia, Australia, Pacific islands, tropical and South America; 10 genera (five introduced ) and 121 species (50 endemic, 32 introduced treated here) in China.

Many Myrtaceae are cultivated garden ornamentals , street trees, or plantation trees. Some members of tribe Syzygieae are grown as fruit crops. In addition to the cultivated members of the family treated here, some others grown in China include Acca sellowiana (O. Berg ) Burrett (Feijoa sellowiana (O. Berg) O. Berg), Myrtus communis Linnaeus, and Syncarpia glomulifera (Smith) Niedenzu.[1]

Genus Psidium

Shrubs or small trees . Bark gray, smooth . Branchlets pubescent . Leaves opposite, petiolate ; leaf blade pinnately veined. Flowers axillary , large, usually 1 or 2 per axil. Bracts 2. Hypanthium campanulate or urceolate . Calyx lobes 4 or 5, unequal. Petals 4 or 5, white. Stamens many, separate, in many whorls; anthers ellipsoid , basifixed , locules parallel, longitudinally dehiscent . Ovary inferior, adnate to hypanthium, 4- or 5-loculed or more; ovules numerous . Style linear ; stigma expanded. Berry globose to pyriform , fleshy , many-seeded, apex with persistent calyx lobes; placenta well developed, fleshy. Seed coat hard; embryo curved ; hypocotyl long; cotyledons short.

About 150 species: tropical America; two species commonly cultivated in China with one naturalized .[2]

Habitat

Biome: Terrestrial [3].

Taxonomy

Notes

Name Status: Accepted Name .

Last scrutiny: 11-Nov-2003

Similar Species

Members of the genus Psidium

ZipcodeZoo has pages for 21 species, subspecies, varieties, forms, and cultivars in this genus:

P. acutangulum (Para Guava) · P. amplexicaule (Mountain Guava) · P. araca (Brazilian Guava) · P. calyptranthoides (Luquillo Mountain Guava) · P. cattleianum (Cattley Guava) · P. cattleianum lucidum (Kuawa-Lemi) · P. friedrichsthalianum (Cas) · P. guajava (Abas) · P. guajava 'Pink' (Guava) · P. guajava 'Ruby Red Supreme' (Guava) · P. guineense (Araca) · P. littorale (Cattley Guava) · P. littorale var. Longipes (Purple Guava) · P. littorale var. littorale (Yellow Strawberry Guava) · P. littorale var. longipes (Strawberry Guava) · P. longipes (Long-Stalk Stopper) · P. longipes var. longipes (Berg) McVaugh (Mangroveberry) · P. longipes var. orbiculare (Berg) McVaugh (Vieques Esland Guava) · P. microphyllum (Puerto Rican Guava) · P. montanum (Mountain Guava) · P. sintenisii (Hoja Menuda)

More Info

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Further Reading

• The World List of Threatened Trees WCMC, IUCN url p. 459.
• Chang Hung-ta & Miau Ru-hwai. 1984. Myrtaceae. In: Chen Chieh, ed., Fl. Reipubl. Popularis Sin. 53(1): 28-135.
• Chang Hung-ta & Miau Ru-hwai. 1984. Myrtaceae. In: Chen Chieh, ed., Fl. Reipubl. Popularis Sin. 53(1): 28-135.

Notes

Contributors

• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.
• IUCN 2012. IUCN Red List of Threatened Species. Version 2011.2. . Downloaded on January 28, 2012.
• Kelly, D.L. 1998. Psidium dumetorum. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloadedon 04February2012.

Identifiers

• Biodiversity Heritage Library NamebankID: 7148003
• Catalogue of Life Accepted Name Code: Kew-166710
• Global Biodiversity Information Facility Taxonkey: 15648855
• Globally Unique Identifier: urn:lsid:ipni.org:names:600802-1
• IUCN ID: 237485
• Zipcode Zoo Species Identifier: 1024833

Footnotes

1. Jie Chen & Lyn A. Craven "Myrtaceae". in Flora of China Vol. 13 Page 321. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
2. "Psidium". in Flora of China Vol. 13 Page 321, 331. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
3. Kelly, D.L. 1998. Psidium dumetorum. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 04 February 2012. [back]

©2004-2012 David Stang. All rights reserved.